Until they hid in an empty classroom, Harry asked rather dejectedly, "Why are they all looking at me like that?"
"You're a Parselmouth, and you never told us." Ron was a bit out of breath, as they had run all the way out of that classroom.
Hermione nodded along. "You were talking to the snake in a language we couldn't understand. It looked like you were telling the snake to bite Justin."
Chapter 73